I have done quite a few pay it forwards and love it !! Sometimes its just a gesture, othertimes its hard work but well worth either .. We recently helped a couple who was out of gas, we took them to the gas station; filled their tank & got goodies for them/their kids & dog for the road. Then the hubs gave them a gift card for more gas. All this so they could go back home to Kansas as he lost his job and was returning to live with elderly parents.
So we have paid it forward as someone helped us out with gas one time when we had no money and desperately needed it when the kids were growing up.